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Two lenses, the first by focal length 10.0 cm and the second with focal length -12.5 cm, are separated by 20.0 cm. An object, 2.40 cm tall, is 15.0 cm in front of the first lens. What is the size of the final image?
a quasars spectrum shows a shift in spectral lines of 0.158. Use the doppler-shift formula to determine what recession velocity this shift indicates, calculate the recession velocity in kms per second
drops of rain fall perpendicular to the roof of a parked car during a rainstorm. the drops strike the roof with a speed
For N2 at 25oC and 1.00 atm calculate the number of collisions per second made by one molecule; the number of collisions per second per cubic centimeter; compare these values to N2 at 25oC and 1.0*10^-6 torr using the values already calculated Show a..
a tennis bal is hit vertically upward with a speed of 21.0 msec from the roof of an office-building that is 275 ft
A 36.0 kg uniform beam is attached to a wall with the hinge while its far end is supported by a cable such that the beam is horizontal.
A force F= (6x - 2y)N acts on a particle that undergoes a displacement delta r= (3x + y)m. find the work done by the force on the particle
An insect that is 5.30 mm long is placed 8.9 cm from a converging lens with a focal length of 12.0 cm. find the angular magnification if the lens is close to the eye
A diffraction grating has 1900 rulings/cm. On a screen 1.00 m from the grating, it is found that for a particular order m, the maxima corresponding to two closely spaced wavelengths of sodium (589.0 nm and 589.6 nm) are separated by 1.68 mm. Deter..
question what is the pressure in atmospheres on the body of a diver if he is 34 ft below the surface of the water when
An electron moves at right angles to a magnetic field of 0.11 T. Find What is its speed if the force exerted on it is 7.6 10-15 N
a wire of mass 5.00 grams and length 1.20 m is stretched with a tension of 36.0 n. waves of frequency 50.0 hz and
A nozzle of inner radius 1.05 mm is connected to a hose of inner radius 8.02mm. The nozzle shoots out water moving at 25.0 m/s. At what speed is the water in the hosemoving? What is the volume flow rate?
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